Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4337
Title: Measuring optical fiber length by use of a short-pulse optical fiber ring laser in a self-injection seeding scheme
Authors: Wang, Y
Wang, D 
Jin, W 
Keywords: Laser pulses
Light reflection
Optical resolving power
Refractive index
Ring lasers
Semiconductor lasers
Issue Date: 1-Sep-2006
Publisher: Optical Society of America
Source: Applied optics, 1 Sept. 2006, v. 45, no. 25, p. 6469-6472 How to cite?
Journal: Applied optics 
Abstract: A method for measuring the length of an optical fiber by use of an optical fiber ring laser pulse source is proposed and demonstrated. The key element of the optical fiber ring laser is a gain-switched Fabry-Perot laser diode operated in a self-injection seeding scheme. This method is especially suitable for measuring a medium or long fiber, and a resolution of 0.1 m is experimentally achieved. The measurement is implemented by accurately determining the pulse frequency that can maximize the output power of the fiber ring laser. The measurement results depend only on the refractive index of the fiber corresponding to this single wavelength, instead of the group index of the fiber, which represents a great advantage over both optical time-domain reflectometry and optical low-coherence reflectometry methods.
URI: http://hdl.handle.net/10397/4337
ISSN: 0003-6935
DOI: 10.1364/AO.45.006469
Rights: © 2006 Optical Society of America. This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-25-6469. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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